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High pitched whine on recorded video

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petemwah

macrumors regular
Original poster
Feb 10, 2009
228
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Is anyone else experiencing a high pitched whine on their recorded video? It seems that every time I record I can hear this whine and it's also audible on playback. Would be good to sort it out!

it isn't just around my computer that it makes that noise, seems to always do it when recording video...

would be interested to hear feedback from you guys regarding this... x
 
petemwah said:
Is anyone else experiencing a high pitched whine on their recorded video? It seems that every time I record I can hear this whine and it's also audible on playback. Would be good to sort it out!
Click to expand...

It's probably just the sound of the MacRumors forums in the background.
 
Make sure your hnad is not over the mike of the phone. When you move your hand near the bottom of the phone, the mike records those high pitch sounds.
 
arunmey said:
Make sure your hnad is not over the mike of the phone. When you move your hand near the bottom of the phone, the mike records those high pitch sounds.
Click to expand...

thanks for your advice, it hasn't changed the whine though... i've updated the original thread with a link to a video demonstrating the problem. the link is here
 
Didn't get this initially, but did just now. Seems it might have been picking up a high end whine my PC desktop makes that i must have gotten attenuated to.
 
t0mat0 said:
Didn't get this initially, but did just now. Seems it might have been picking up a high end whine my PC desktop makes that i must have gotten attenuated to.
Click to expand...

this is what i thought, but even taking videos outside of an electrical environment causes it to whine... :confused:
 
So I had a similar thread to this, but I have found that if I am eerily silent when recording video then it makes the noise-- if there is background noises happening then it does not make the whine.

Hope that helps
 
lovetheduns said:
So I had a similar thread to this, but I have found that if I am eerily silent when recording video then it makes the noise-- if there is background noises happening then it does not make the whine.

Hope that helps
Click to expand...

thanks! i'll try being a bit more noisy in future! :)
 
Putting your iphone into silent mode will fix the problem. Try it. It did for me. I found the fix on a website. For whatever reason when its on ring it makes an annoying sound, then put it on silent and it won't make the noise. Tell me if this helps.
 
I'm pretty sure I know what's going on here. For some reason during a recording and when the phone isn't on silent, the speaker makes an the "whine" sound which is then picked up by the mic and put into your video. During a recording try adjusting the volume all the way up and all the way down, you'll without a doubt hear that in your recording.
 
I discovered that my phone (Black 16GB) does indeed make the high pitch noise while recording video and voice memos, and you can definitely hear it throughout the playback.
 
I didn't watch the video, but do you have a wife or girlfriend?

If not... I can't figure this one out =/
 
This could be electrical noise from the power circuit leaking into the audio output wires. Or it could be an actual component (inductor or capacitor) vibrating around. This would happen if video drains the battery much faster than ordinary, and the DC-to-DC voltage regulator oscillates in the audible range at that higher power drain.
 
I just called Apple about this problem. The guy i talked to wasn't aware of the problem and he checked on the iphone 3GS that he has there and it doesn't do any whine. So either he couldn't hear it or its a problem. Either way they said i could get a replacement phone. I'm heading off to the apple store now!
 
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